| Component Location |

| 1. Seat heater unit (Passenger seat only) 2. Seat chusion heater | 3. Seat back (Heater) |

| 1. Air ventilation unit (Passenger seat only) 2. Seat cushion (Heater) | 3. Seat back (Heater) |

| 1. Rear seat heater unit (Passenger seat only) | 2. Seat cushion (Heater) |
InspectionSeat Control Switch1.With the power seat switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the power seat switch.
Circuit Diagram[Front Seat Heater (Non-Air Ventilation)][Rear Seat Heater (Bench Type)]
Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.Specification Evaporator core temperature [°C (°F)] Resistance [KΩ]
DescriptionThe PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core.The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective hybrid engine.